Photographers number:	1825
Title:	Union Diggings, Columbia Hill, North Bloomfield Gravel Mining Co.
Photographer:	Carleton E Watkins
Publisher:	Carleton Watkins
Format:	Stereograph
Image courtesy of:	Jim Crain
Tags:	California | Geological | Mammoth Plate Related | Messy Environment | Moving Water | Nevada County | Tool
CarletonWatkins.org ID:	1002092